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在德克萨斯东北部的一个地区,沿六个方位采集了三分量地震数据。震源倾斜产生了综合冲击力。形成了等价的垂直分量和横测线水平分量。在采用新的3D交错网格有限差分算法迭代模拟的基础上对数据进行了分析。三维模型按空间可变各向异性、粘弹性参数(P波速度、S波速度、密度Q_p、Q_s)定义。并且将其转换成弹性张力分量和松驰时间以便于计算。近地表混响波、面波、转换波以及深部反射波振幅的同时
In one area in northeastern Texas, three-component seismic data were collected along six directions. Tilt source produced a comprehensive impact. The equivalent vertical component and cross-line horizontal component are formed. The data were analyzed based on the iterative simulation using the new 3D staggered grid finite difference algorithm. The three-dimensional model is defined by the spatial anisotropy and the viscoelastic parameters (P-wave velocity, S-wave velocity, density Q_p, Q_s). And convert it into elastic tension components and relaxation time for easy calculation. Near-surface reverberation wave, surface wave, converted wave and depth of reflected wave amplitude at the same time